Steam-generating organization for heating plants



June 12, 1928. 1,613,508

' W. H; HEAGERTY ET AL STEAM GENERATING ORGANIZATION FOR HEATING PLANTS Filed Sept. 16, 1927 2 Sheets-Sheet lwmiiili I I I I F/CF. J.

m lNVEN TOFS (\l WILLIAM H. HEAGE'HTY 3- JAMES JIM/1Y5,

June 12, 1928.

' w. H. HEAGERTY ET AL STEAM GENERATING ORGANIZATION FOR HEATING PLANTS I l I I l I I I I I l I I I I I l I I l I I I l l 1 l I I l I l I .I

I n WQPR mwm WWFK a w N n Ym m I A w I EM A m G WHEB Hm J NM m L M w Filed Sept. 16, 1927 Patented June 12, 1928.

UNITED STATES PATENT OFFICE.

WILLIAM H. HEAGERTY AND JAMES J. HAYS, OF OIL CITY, PENNSYLVANIA, AB- SIGNORS TO OIL CITY BOILER WORKS, OF OIL CITY, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA.

STEAM-GENERATING ORGANIZATION FOR HEATING PLANTS.

Application filed September 16, 1927. Serial No. 219,933.

The p'rimary object of this invention is,

to supplya smokeless, coal-burning, stokerfired'boiler of theself-contained type, for the generation of steam for the heating of buildings such. as apartment buildings, oflice '10 jectionable.

'Many heating plants. are of the handstoked type and are cared for by inexperienced janitors, who do not understand the technicalities of firing a boiler and the consequences is an unnecessary production of smoke, hence another object of this invention is, to. provide a steam-generating organization that does not need an experienced fireman, or such constant attention as expert hand firing demands.

Still another object is, to provide a boiler for heating purposes of the self-contained type in which the stoker is housed within the water-leg, whereby a setting of masonry is dispensed with, and the heat which has heretofore been absorbed by such setting is utilized in the generation of steam; by dispensing with a settin of masonry headroom is also conserve since a lower organization results.

The organic, mechanical embodiment of our inventive idea, whereby we are enabled to attain said objects, is clearly illustrated in the accompanying drawings in which Fig. 1 is an elevation of the front end of a self-contained boiler of the locomotive type showing the stoker in transverse section at a line positioned within the fire box.

Fig. 2 is a side elevation of the boiler with- 0 out the stoker,

Fig. 3 is a front elevation of the organiza tion comprising a boiler and its stoker,

Fig. 4 is a side elevation of the water-leg of said boiler, with the lower portion of the near wall broken away. to expose the stoker to view, the retort of the stoker being shown in central, longitudinal section.

Fig. 1 is given especially for the purpose of showing the arched or cutaway portion 5 of the front wall of the water-leg 1 of the boiler to receive the stoker and for the further purpose of indicating that the stoker is fully housed within the walls of the waterleg so that all heat produced by combustion is utilized instead of being partially absorbed by boiler setting.

Fig.2 is given for the purpose of indi-.

cating clearly the type of boiler we employ and for the additional purpose of indicating the simplicity of the setting 2 and the fact that said setting is all below the gratesurface of the combustion chamber.

In detail, the construction shown in said drawings is substantially as follows:

By an inspection of Fig. 2, it will be noted that the height of. the water-leg 1 is somewhat higher than usual in boilers of this type; this'is for the purpose of giving ample combustion space above the grate surface of the stoker. I

The setting 2 for the water-leg of boiler comprises a three-sided, rectangular wall, and two piers 3, 3, which piers form a partial support for the stoker, said stoker being otherwlse supported by the panel 9 and the supports 25 and 26. Said stoker is in no Wise secured to the boiler, hence if necessary, for the purpose of inspection renewal or repairs the boiler may be raised from the stoker and its setting, thus affording convenient and easy access to both the firebox of the boiler and the stoker, and also greatly simplifying the original installation of both boiler and stoker.

The stoker may be of any suitable con struction, and the one here illustrated is a well known commercial product which comprises the single retort 4, the tuyeres 5, the

combustion tables 6 and the side-dumping grate-bars 7. Said bars are mounted upon and actuated by the square, rotative shafts 8, 8 and these shafts project at their front ends through the front panel 9 of the stoker organization for ready access and manipulation when dumping the grates.

The stoker also comprises a feed-cylinder 10 in which a piston or ram 11 is caused to quantity of coal is forced into the retort, and this in turn forces a portion of the coal already in the retort to be forced over said tuyeres 5 and onto the combustion tables 6, and the ashes of combustion to pass over onto the grate-bars 7, from whence it may, as necessity arises, be dumped into the ash pit 14 of the setting.

The shaft of crank 12 aforesaid is driven by a worm gear which is contained in the casing 15, and the worm which cooperates with said gear is contained in the tubular barrel 16. To this latter worm, motion is transmitted by means of worm gear positioned at 17, the worm of which is driven by a chain and sprocket gearing located within the guard 18, the driving sprocket of which is mounted upon one end of the shaft of an electric motor 19; upon the other end of the shaft of said motor a fan is mounted in the casing 20 of a blower, which delivers air into said chamber 14 beneath the stoker, whereby forced draft is provided.

The arched opening 21 in thefront wall of the water-leg 1 is closed by a panel 22 that forms a portion of the stoker mounting. The mud-ring 23 which constitutes the bot tom wall of the water-leg is conformed to said arched opening and that portion of the inner sheet of said water-leg adjacent to said mud-ring may be protected from furnace heat by the refractory. material as shown at 24.

We claim the following:

1. A steam generating organization for heating plants comprising a boiler of the self-contained type having a water-leg adapted, especially in the respect that the front wall thereof is arched, to receive and form a housing for a stoker, in combination with a stoker ositioned within and housed by the walls of said water-leg and supported independently thereof.

2. A steam generating organization for heating plants comprising a boiler of the locomotive type having a water-leg which forms the combustion chamber, the front wall of said water-leg being formed into an arch to clear the adjacent portions of a stoker, in combination with a stoker housed within said combustion chamber whereby all combustion is caused to take place within the walls of said water-leg, said stoker comprisin a centrally located longitudinally exten ng retort and a side-dumping grate ositioned at each side thereof, all supported independently of the boiler.

3. A steam generating organization comprising a bo' er of the locomotive type wherein the walls of the water-leg surround and form the combustion chamber, and wherein the front'wall forms an arch to clear adjacent portions of a stoker, in combination with a stoker of the single-retort type so positioned within said chamber that the longitudinal axis of said retort is parallel to the longitudinal axis of said boiler, side-dumping grates for said stoker positioned laterally to and upon both sides of said retort with their free ends extending into juxtaposition to the side walls of said water-leg and their upper surfaces above the lower edge of said walls, means for delivering fuel to said retort in such manner as to cause a portion thereof and the ashes of combustion to pass over upon said grates, an enclosed pit beneath said stoker, a blower delivering air under pressure into said pit whereby combustion of said fuel is promoted, and piers within said pit, whereupon said stoker is supported independently of the boiler.

4. A steam generating organization comprising a boiler of the locomotive type wherein the walls of the water-leg surround and form the combustion chamber, and wherein the front wall forms an arch to clear adjacent portions of a stoker, in combination with a stoker of the single-retort type which is supported independently of said boiler, and s0 positioned within said chamber that the longitudinal axis of said retort is parallel to the longitudinal axis of said boiler, side-dumping grates for said stoker ositioned laterally to and upon both sides of said retort with their free ends extending into juxtaposition to the side walls of said water-leg and their upper surfaces above the lower ed e of said walls, means for delivering fuel in variable quantities to said retort in such manner as to cause a portion thereof and the ashes of combustion to pass over upon said grates, an enclosed pit beneath said stoker and a blower delivering air under pressure into said pit whereby combustion of said fuel is promoted and smokeless combustion of coal 1S attained.

5. A steam generating organization for heatin plants comprising in combination a boiler aving an integral, rectangular combustion chamber the walls of which form a water leg for said boiler, one of said walls forming an arch for the introduction of a stoker into said chamber, a setting for said boiler upon which the lower face of the other three walls of said leg rests to support the boiler, a stoker of the retort type extending through said arch .with its retort positioned centrally of and extending across said chamber, and a grate structure of the wing type positioned upon each side of and extending parallel with the axis of said retort with the free ends thereof in juxtaposition to the side walls of said chamber; said stoker and grates being Sglfi'pOlted independently of said chamber w s.

6. A steam generating organization for heatin plants comprisin in combination a boiler Tiaving an integra rectan ar combustion chamber the walls of which form a waterleg for said boiler, one of said walls forming an arch for the introduction of a stoker into said chamber, a setting for said boiler upon which the lower face of the other three walls of said leg rests to support the boiler, a stoker organization of the retort type extending through said arch with its retort positioned centrally of and extending across said chamber, and a grate structure of the wing type positioned upon each side of and extending parallel with the axis of said retort with the free ends thereof in juxtaposition to the side walls of said chamber; said stoker being supported otherwise than by the walls of said boiler.

7. A steam generating organization for heating plants comprising in combination a boiler having an integral, rectangular combustion chamber the walls of which form a waterleg for said boiler, one of said walls forming an arch for the introduction of a stoker into said chamber, a setting for said boiler upon which the lower face of the other three walls of said leg rests to support the boiler, a stoker organization of the re tort type extending through said arch with its retort positioned centrally of and extending across said chamber, a grate structure of the wing type positioned upon each side of and extendin parallel with the axis of said retort with t e free endsthereof in juxtaposition to the side walls of said chamber, piers within said setting, supporting said Stoker organization independently of said boiler, a blower deliverin air beneath said stoker organization where y forced draft is produced, and a motor unit whereby said stoker and said blower are operated.

8. A steam generating organization for heating plants comprising a boiler provided with an integral water-leg the Walls of which form the combustion chamber, one of which walls is formed into an arch, a supporting setting for said water-leg one side of which setting has an opening supplementary to the opening formed by said arch whereby a housing is provided for the reception of a stoker, in combination with a stoker extending throu h said housing into operative relation to sald combustion chamber, and a setting for said stoker whereupon the same is supported independently of the boiler.

In testimony whereof we afiix our signatures.

WILLIAM H. HEAGERTY. JAMES J. MAYS. 

